Home / 137,218.64-189,367.54-84,842.01

Finding the Fourth Proportional to 137,218.64, 189,367.54 and 84,842.01

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Solution

The fourth proportional to 137,218.64, 189,367.54 and 84,842.01 is: 117,085.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,218.64 : 189,367.54 = 84,842.01 : x
  2. Step 2: Convert to fraction form
    137,218.64/189,367.54 = 84,842.01/x
  3. Step 3: Cross multiply
    137,218.64x = 189,367.54 × 84,842.01
  4. Step 4: Simplify right side
    137,218.64x = 16,066,322,510.25
  5. Step 5: Solve for x
    x = 16,066,322,510.25/137,218.64
  6. Step 6: Final answer
    x = 117,085.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.